Saving bitmap to SdCard Android -

-

i writng code convert png file bmp , save on sdcard. current code. 

    fileinputstream in;     bufferedinputstream buf;     try {         in = new  fileinputstream("file_path_to_read.png");         buf = new bufferedinputstream(in);         byte[] bmaparray= new byte[buf.available()];         buf.read(bmaparray);         bitmap bmap = bitmapfactory.decodebytearray(bmaparray, 0, bmaparray.length);          //code segment save on file         int numbytesbyrow = bmap.getrowbytes() * bmap.getheight();         bytebuffer bytebuffer = bytebuffer.allocate(numbytesbyrow);         bmap.copypixelstobuffer(bytebuffer);         byte[] bytes = bytebuffer.array();          fileoutputstream fileouputstream = new fileoutputstream("file_path_to_save.bmp");         fileouputstream.write(bytes);         fileouputstream.close();           if (in != null) {         in.close();         }         if (buf != null) {         buf.close();         }       } catch (exception e) {      }

i having problem in saving bmap sdcard. examples found use bmap.compress(). using method can't save bmp. can give example on how save bitmap on sdcard?

edit: can save file .bmp sdcard. won't original size. sugguestions on converting png bmp?

file root = new file(environment.getexternalstoragedirectory()                     + file.separator + "my_folder" + file.separator);     root.mkdirs();     file myfile = new file(root, "abc.jpg");     bitmap bitmap = decodefile(myfile, 800, 600);     outputstream out = null;     file file = new file(mediastoragedir.getabsolutefile() + "/def.jpg");     try {         out = new fileoutputstream(file);         bitmap .compress(bitmap.compressformat.jpeg, 80, out);         out.flush();         out.close();         bitmap.recycle();     } catch (filenotfoundexception e) {         e.printstacktrace();     } catch (ioexception e) {         e.printstacktrace();     }  public static bitmap decodefile(file f, int width, int hight) {     try {         // decode image size         bitmapfactory.options o = new bitmapfactory.options();         o.injustdecodebounds = true;         bitmapfactory.decodestream(new fileinputstream(f), null, o);          // new size want scale         final int required_width = width;         final int required_hight = hight;         // find correct scale value. should power of 2.         int scale = 2;         while (o.outwidth / scale / 2 >= required_width                 && o.outheight / scale / 2 >= required_hight)                 scale *= 2;          // decode insamplesize         bitmapfactory.options o2 = new bitmapfactory.options();         o2.insamplesize = scale;         return bitmapfactory.decodestream(new fileinputstream(f), null, o2);     } catch (filenotfoundexception e) {     } return null; }

Comments

Post a Comment

Popular posts from this blog

database - VFP Grid + SQL server 2008 - grid not showing correctly -

-
i having problem, have grid called "gridbasica" , this: thisform.gridbase.recordsource = "sgviemp" sgviemp cursor made executing select sqlserver command sqlexec. when want modify registry, go form , the update there. so, when come form grid, grid isnt grid anymore, big white rectangle. reading around said: delete recordsource , asingt again. thisform.gridbase.recordsource = "" *--i sqlexe here thisform.gridbase.recordsource = "sgviemp" i , works, but, when click button modify again cursos updated modify form doesnt load fields did first time. could me out that? thanks in advance. --------------- edit ------------------ i have been doing recommended: lnselect = select(0) n = sqlexec(thisform.conexion,"select emp_ccodigo codigo, emp_cnombre 'nombre o razon social', emp_cnumrif 'r.i.f' sgviempr","sgviemp1") set echo on suspend select sgviemp zap in sgviemp *-- browse *--zaps correct
Read more

jquery - Set jPicker field to empty value -

-
im using jpicker color selector in form. have clear value set window/icon 'no color selected' state. i've tried following: $(':input[name="color"]').val(''); //access value directly. (does not affect jpicker) 2: $.jpicker.list[0].color.active.val('hex', '', this); //set color black , input value 000000, instead of empty string 3: $.jpicker.list[0].color.active.val(null, '', this); //does nothing none of 3 methods seems behave properly. in advance. this works me :) $.jpicker.list[0].color.active.val('v', null); here example: http://jsfiddle.net/3up7n/
Read more

.htaccess - htaccess convert request to clean url and add slash at the end of the url -

-
ok , searched more 4 days , more 20 posts here in stach or in websites without kind of success first here htaccess file rewriteengine on rewriterule ^([a-za-z0-9_]+)/?$ index.php?page=$1 [nc] rewriterule ^([a-za-z0-9_]+)\/([a-za-z0-9_]+)\/?$ index.php?page=$1&action=$2 [nc] i tried many codes 1 worked me can call request , works me www.example.com/pagename => www.example.com/index.php?page=pagename here questions , please provide me information "in detail" understand code well 1- how convert request automatically www.example.com/index.php?page=pagename www.example.com/pagename 2- if tried add slash @ end shows me page without images or styling mean www.example.com/pagename => works www.example.com/pagename/ => doesn't work that's :) for first part need 301 rule this: rewritecond %{the_request} /index\.php\?page=([^\s&]+) [nc] rewriterule ^ /%1? [r=301,l] for second part use absolute path in css, js, images files r
Read more